目录i0Q嘉泰姆

1.产品概述                       2.产品特点i0Q嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 i0Q嘉泰姆
5.产品封装图                     6.电路原理图                   i0Q嘉泰姆
7.功能概述                        8.相关产品i0Q嘉泰姆

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一,产品概述(General Description)   i0Q嘉泰姆

    The CXSD61036 is high efficiency synchronous,PWM step-downi0Q嘉泰姆
DC/DC converters working under an input voltagei0Q嘉泰姆
range of 2.5V to 5.5V. This feature makes the CXSD61036 suitablei0Q嘉泰姆
for single Li-lon battery-powered applications.100% duty cyclei0Q嘉泰姆
capability extends battery life in portable devices, while the quiescenti0Q嘉泰姆
current is 200 A with no load, and drops to < 1 A in shutdown.i0Q嘉泰姆
       The internal synchronous switch is  desired to increase efficiencyi0Q嘉泰姆
without an external Schottky diode. The 1.4 MHz fixed switchingi0Q嘉泰姆
frequency allows the using of tiny,low profile inductors and ceramici0Q嘉泰姆
capacitors,which minimized overall solution footprinti0Q嘉泰姆
        The CXSD61036 converters are available in the industry standardi0Q嘉泰姆
SOT-23-5 power packages (or upon request)i0Q嘉泰姆
二.产品特点(Features)i0Q嘉泰姆

1.)Up to 95% Efficiencyi0Q嘉泰姆
2.)Current mode operation for excellent line and loadi0Q嘉泰姆
     transient responsei0Q嘉泰姆
3)Low quiescent current: 230 UAi0Q嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35i0Q嘉泰姆
5)Output voltage 5.5V 0.6Vi0Q嘉泰姆
6)Automatic PWM/PFM mode switchingi0Q嘉泰姆
7)No Schottky diode requiredi0Q嘉泰姆
8)1.4MHz fixed frequency switchingi0Q嘉泰姆
9)Short-Circuit protectioni0Q嘉泰姆
10)Shutdown quiescent current: < 1 UAi0Q嘉泰姆
11)Low profile SOT-23-5 package (lead-freei0Q嘉泰姆
12)packaging is now available)i0Q嘉泰姆
三,应用范围 (Applications)i0Q嘉泰姆
Digital cameras and MP3i0Q嘉泰姆
Palmtop computers / PDAsi0Q嘉泰姆
Cellular phonesi0Q嘉泰姆
Wireless handsets and DSL modemsi0Q嘉泰姆
PC cardsi0Q嘉泰姆
Portable media playersi0Q嘉泰姆
四.下载产品资料PDF文档i0Q嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！i0Q嘉泰姆

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五,产品封装图 (Package)i0Q嘉泰姆

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六.电路原理图i0Q嘉泰姆

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七,功能概述i0Q嘉泰姆

INDUCTOR SELECTIONi0Q嘉泰姆

For most applications, the value of the inductor will fall in the range of 1μH to 4.7μH. Its value isi0Q嘉泰姆
chosen based on the desired ripple current. Large value inductors lower ripple current and smalli0Q嘉泰姆
value inductors result in higher ripple currents. Higher VIN or VOUT also increases the ripplei0Q嘉泰姆

current as shown in equation 1. A reasonable starting point for setting ripple current is
IL =240mA (40% of 600mA).i0Q嘉泰姆
The DC current rating of the inductor should be at least equal to the maximum load current plusi0Q嘉泰姆
half the ripple current to prevent core saturation. Thus, a 720mA rated inductor should bei0Q嘉泰姆
enough for most applications (600mA + 120mA). For better efficiency, choose a low DC-resistancei0Q嘉泰姆
inductor.i0Q嘉泰姆
Different core materials and shapes will change the size/current and price/current relationship ofi0Q嘉泰姆
an inductor. Toroid or shielded pot cores in ferrite or permalloy materials are small and don’ti0Q嘉泰姆
radiate much energy, but generally cost more than powdered iron core inductors with similari0Q嘉泰姆
electrical characteristics. The choice of which style inductor to use often depends more on thei0Q嘉泰姆

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036i0Q嘉泰姆

requires to operate. Table 1 shows some typical surface mount inductors that work well ini0Q嘉泰姆
八,相关产品                 更多同类产品.......i0Q嘉泰姆